public class TestTwo {

    public static void main(String[] args) {
        /**
         *  输出：System.out.println 换行答应
         *        System.out.print  不换行打印
          */
        /*System.out.print(10);
        System.out.print(20);*/
        //常量
        final int PRICE = 20;
        System.out.println(PRICE);
        int num=100;
        System.out.println(num);
        //打印表达式
        System.out.println(PRICE+num);
        //打印字符串
        System.out.println("a"+"=====a");


    }
}
